6. Verification Manuals

The Verification Manuals for the following products were updated for 2026 R1:

6.1. Workbench Verification Manual

6.1.1. New Workbench Test Cases

No test cases were added for 2026 R1.

6.1.2. Modified Workbench Test Cases

No test cases were modified for 2026 R1.

6.1.3. Removed Workbench Test Cases

No test cases were removed for 2026 R1.

6.2. Mechanical APDL Verification Manual

6.2.1. New Mechanical APDL Test Cases

  • VM324: Swelling Strain of a Block Under High Fluence Loading: A fluence is applied on a block constrained in the vertical direction. This induces a swelling strain. The value of the swelling strain is compared to Mechanical APDL results.

6.2.2. Modified Mechanical APDL Test Cases

  • VM174: Bimetallic Beam Under Thermal Load: 4-Node Coupled Field Shell (SHELL229) added to the test case.

  • VM223: Electro-Thermal Microactuator Analysis: 4-Node Coupled Field Shell (SHELL229) added to the test case.

6.2.3. Removed Mechanical APDL Test Cases

No test cases were removed for 2026 R1.

6.3. Ansys LS-DYNA Verification Manual

6.3.1. New LS-DYNA Test Cases

LS-DYNA Workbench Test Cases

No test cases were added for 2026 R1.

LS-DYNA Solver Test Cases
  • VM-LSDYNA-SOLVE-038: Rectangular Plate with Circular Hole Subjected to Tensile Loading: The simulation models a 3D rectangular plate with a central circular hole, a geometric irregularity, subjected to linear static structural analysis to evaluate stress concentration effects.

  • VM-LSDYNA-SOLVE-039: Buckling of a Uniform Rod: This test case models the elastic buckling behavior of a uniform cantilever rod under axial compressive loading.

  • VM-LSDYNA-SOLVE-040: Buckling of a Stepped Rod: This finite element (FE) simulation investigates the elastic buckling behavior of a stepped cantilever rod subjected to two axial loads: a tensile force and a compressive force.

  • VM-LSDYNA-SOLVE-041: Buckling of a Curved Panel: This finite element (FE) simulation investigates the elastic buckling behavior of a curved panel under a uniform radial pressure.

  • VM-LSDYNA-SOLVE-042: Modal Analysis of an Annular Plate: This test case models the free vibration of an annular plate, subjected to a free-clamped condition. The objective is to validate the first six natural frequencies of the structure.

  • VM-LSDYNA-SOLVE-043: Fundamental Frequency of an Elliptical Plate: This test case simulates the vibration of a clamped-edge elliptical plate to validate its fundamental natural frequency.

  • VM-LSDYNA-SOLVE-044: Modal Analysis of a Rectangular Plate: This simulation models the vibration of a rectangular plate with the two smaller edges subjected to a simply supported condition and one of the other edges subjected to a clamped condition. The objective is to validate the first six natural frequencies of the structure.

  • VM-LSDYNA-SOLVE-045: Fundamental Frequency of a Square Plate with Opening: This simulation investigates the vibration of a clamped squared plate with a central opening.

  • VM-LSDYNA-SOLVE-046: Fundamental Frequency of a Slender Beam with Central Mass: This test case models the vibration of a pinned-pinned slender bar with a concentrated mass at its mid-length. The objective is to validate the fundamental natural frequency of the structure.

  • VM-LSDYNA-SOLVE-047: Axial Natural Frequency of Hat Beams: This test case simulates the vibration of a spring-mass system composed of two collinear hat bars. The objective is to validate the axial natural frequency of the structure.

  • VM-LSDYNA-SOLVE-048: Transverse Natural Frequencies of a Cantilever Tube: This test case models the vibration of a cantilever tube.

  • VM-LSDYNA-SOLVE-049: Natural Frequency of a Spring-Mass System: This test case models models a spring-mass system comprised of an instrument set on a rubber mount. The objective is to validate the system's natural frequency.

  • VM-LSDYNA-SOLVE-050: Lateral Vibration of a Rectangular Plate: This test case models the lateral vibration of a rectangular plate with one smaller edge subjected to a clamped condition. The objective is to validate the structure's first natural frequency of lateral vibration.

  • VM-LSDYNA-SOLVE-051: Natural Frequencies of a Circular Plate: This test case models the vibration of a circular plate with its edge subjected to a clamped condition.

  • VM-LSDYNA-SOLVE-052: Natural Frequencies of a Two-Mass-Spring System: This test case models a system composed of two masses and three springs. The objective is to validate the two normal modes and natural frequencies of the system.

  • VM-LSDYNA-SOLVE-053: Seismic Response of a Mass-Spring System: This test case models a vibrometer, consisting of a mass-spring system with base excitation.

  • VM-LSDYNA-SOLVE-054: Seismic Response of a Mass-Spring-Damper System - Equivalent Structural Damping: This test case models a mass-spring-damper system with a harmonic disturbing force acting on the mass.

  • VM-LSDYNA-SOLVE-055: Transient Response of a Mass-Spring-Damper System: This test case models a mass-spring-damper system, which is displaced by a distance Δ when released. Four damping ratios are tested. The objective is to validate the displacement profile of each system.

  • VM-LSDYNA-SOLVE-056: Transient Response of a Two-Mass-Spring System: This test case models a system composed of two masses and two springs. Mass 1 is subjected to a pulse load F. The objective is to validate the displacement profile of each mass.

  • VM-LSDYNA-SOLVE-057: Pin-Ended Double Cross: In-Plane Vibration: This test case models eight beams of the same length, evenly spaced, and connected at the center. All endpoints are constrained in the x and y directions. The objective is to validate the frequency of predicted modes.

  • VM-LSDYNA-SOLVE-058: Buckling of a Bar with Hinged Ends (Beam Elements): This test case models the elastic buckling of a long, uniform bar with hinged ends subjected to axial loading. The objective is to validate the critical buckling load of the bar.

  • VM-LSDYNA-SOLVE-059: Portal Frame Under Symmetric Loading: This test case models a rectangular frame subjected to a uniform distributed load.

  • VM-LSDYNA-SOLVE-060: Seismic Response of a Simply Supported Beam: This test case models a simply-supported beam with both supports subjected to vertical motion. The objective is to validate the natural frequency, the maximum deflection, and the maximum bending stress of the beam.

  • VM-LSDYNA-SOLVE-061: Transient Response of a Ball Impacting a Flexible Surface: This test case models a rigid ball dropped onto a flexible surface. The objective is to validate the time, displacement, velocity, and kinetic energy of the ball at the moment of the impact and the maximum displacement.

  • VM-LSDYNA-SOLVE-062: Cantilever with Off-Center Point Masses: A cantilever beam is situated horizontally with two off-center lump masses. The beam is constrained in all DOFs at the left end. Frequency vibration analysis is performed on the model.

  • VM-LSDYNA-SOLVE-063: Cylindrical Vessel Under Internal Pressure: This test case models a long cylindrical vessel with closed ends, subjected to an internal pressure. The 3D cylinder is modeled as a 2D axisymmetric rectangle representing the cylindrical shell, and the objective is to validate the circumferential stress of the vessel.

  • VM-LSDYNA-SOLVE-064: Deep Simply-Supported Beam: This test case performs frequency vibration analysis on a simply-supported beam that is constrained in the x, y, z and Rx direction on the left endpoint and in the y and z direction on the right endpoint.

LS-DYNA Fluids Test Cases
  • VM-LSDYNA-FLUID-008: 2D Passive Scalar Transport in a Laminar Channel Flow: This test case models the transport of a passive scalar (species) in a two-dimensional, incompressible, steady, laminar flow inside a channel.

  • VM-LSDYNA-FLUID-009: Womersley Flow: Pulsative Flow in a Rigid Cylindrical Tube: This test case models the Womersley flow which consists of an oscillatory, fully developed laminar flow of a Newtonian fluid in a rigid cylindrical tube driven by a time-periodic pressure gradient.

  • VM-LSDYNA-FLUID-010: Conical Body Impact on a Water Free-Surface: This test case models the impact of a conical body on a water free-surface. The objective is to validate the vertical hydrodynamic force profile over time.

  • VM-LSDYNA-SPH-001: 2D Laminar Couette Flow Simulation (SPH): The simulation uses SPH to model classical Couette flow, representing a viscous, incompressible fluid confined between two parallel plates.

LS-DYNA EMAG Test Cases

No test cases were added for 2026 R1.

LS-DYNA Benchmark Test Cases

No test cases were added for 2026 R1.

LS-DYNA Impact Test Cases
  • VM-LSDYNA-IMPACT-001: Normal Collision of a Rubber Sphere with a Steel Plate: This test case models the normal collision of a deformable rubber sphere with a rigid steel plate.

  • VM-LSDYNA-IMPACT-002: Tensile Elastic Wave Analysis in a 3D Split-Hopkinson Pressure Bar: This test case models the three-dimensional impact of a hollow cylinder (striker) on a flange connected to a long bar (incident bar).

  • VM-LSDYNA-IMPACT-003: Tensile Elastic Wave Analysis in a 2D Split-Hopinson Pressure Bar: This test case models the two-dimensional impact of a hollow cylinder (striker) on a flange connected to a long bar (incident bar).

  • VM-LSDYNA-IMPACT-004: Compressive Elastic Wave Analysis in a 3D Split-Hopkinson Pressure Bar: This test case models the three-dimensional impact between two long cylinders (a moving striker and stationary incident bar).

  • VM-LSDYNA-IMPACT-005: Compressive Elastic Wave Analysis in a 2D Split-Hopkinson Pressure Bar: This test case models the two-dimensional impact between two long cylinders (a moving striker and stationary incident bar).

LS-DYNA Dynamics Test Cases
  • VM-LSDYNA-DYNAMICS-001: Uniform Precession of Gyroscope (Rigid Parts): This test case calculates the precession angular speed of a gyroscope to validate the LS-DYNA dynamics calculations for spinning bodies, specifically rotational motion. All components are modeled as rigid bodies.

  • VM-LSDYNA-DYNAMICS-002: Uniform Precession of Gyroscope (Elastic Solid Disk): This test case calculates the precession angular speed of a gyroscope (gyro) to validate the LS-DYNA dynamics calculations for spinning bodies, particularly rotational motion. All components, except for the elastic disk (flywheel), are modeled as rigid bodies.

  • VM-LSDYNA-DYNAMICS-003: Uniform Precession of Gyroscope (Elastic Shell Disk): This test case calculates the precession angular speed of a gyroscope (gyro) to validate the LS-DYNA dynamics calculations for spinning bodies, particularly rotational motion. All components, except for the elastic disk (flywheel), are modeled as rigid bodies.

6.3.2. Modified LS-DYNA Test Cases

No test cases have been modified for 2026 R1.

6.3.3. Removed LS-DYNA Test Cases

No test cases have been removed for 2026 R1.