Geometry & boundaries
Drawings, CAD, sketches, support conditions, constraints and known simplifications.
Services
Nonlinear Abaqus FEA
Abaqus-based finite element modelling for components, supports, tanks, connections, and industrial assemblies where simplified checks cannot represent the real response.
Buyer problem
Components · assemblies · local failure · nonlinear response
Engineering teams often need more than a global design check. Local contact, plasticity, large deformation, buckling, thermal stress, or connection behavior can govern the decision even when the overall structure appears acceptable.
Method
Axis develops Abaqus/Standard or Abaqus/Explicit models with carefully defined mesh strategy, contact, constraints, material behavior, load application, and output requests. Model verification focuses on units, boundary conditions, energy behavior, convergence or stability, and physical plausibility before interpretation.
Deliverable
Deliverables can include Abaqus model files, model setup notes, stress/strain/displacement contours, history plots, critical-zone interpretation, sensitivity checks where scoped, and a technical report documenting assumptions and limitations.
Value
The objective is not a contour plot. The objective is a defensible simulation output that helps a client understand whether a local detail, support, connection, or design alternative is controlling the response.
Typical inputs
What we need to scope this service.
Materials & loading
Material grade, available test data, load history, temperature, pressure, blast/VCE or operating assumptions.
Decision objective
What the simulation must answer: local stress, damage indicator, comparison, screening, report or research evidence.
Technical depth
How Axis scopes model review, nonlinear component response and defensible local assessment.
01
When this service is needed
Use this path when a component or assembly is governed by local behavior: contact separation, plastic strain concentration, shell-to-solid transitions, large deformation, support flexibility, local buckling, thermal stress, or load transfer through a connection. It is especially useful when a simplified hand check gives the right order of magnitude but cannot explain where the demand concentrates or why a detail is vulnerable.
02
Modelling depth
Models can be built in Abaqus/Standard or Abaqus/Explicit depending on the physics and stability of the problem. The modelling plan may include shell, solid or mixed discretization, tie/contact strategies, nonlinear material behavior, gravity or preload states, amplitude definitions, output requests, and sensitivity checks around the uncertain variables that actually affect the decision.
03
Verification controls
Before results are interpreted, Axis FEA reviews units, boundary conditions, contact behavior, reaction-force paths, energy balance, convergence or stable time increment behavior, mesh density in critical regions and history outputs. This is where a contour plot becomes a defensible engineering result rather than a screenshot.
04
Client value
The final value is decision support: identifying critical zones, comparing design or retrofit options, understanding whether the model response is credible, and documenting assumptions clearly enough that another engineer can review the logic.
Typical inputs
- Geometry, CAD, drawings or sketches with key dimensions
- Material grade, nonlinear data or target assumptions
- Load cases, supports, contacts and operating conditions
- Required outputs: stresses, strains, displacements, reactions, damage or temperature histories
- Desired deliverable level: model audit, figures, calculation note or full technical report
Scoping note
The level of modelling is selected after reviewing the engineering question, available data, uncertainty and required decision. Axis does not recommend high-complexity simulation when a simpler verified check is more appropriate.
Related proof
Relevant case studies.
Cryogenic spill thermal loading in a 9% Ni steel LNG tank
Finite element comparison of prescribed-temperature and transient film-condition thermal loading for cryogenic spill-induced stress in a shell-based 9% Ni steel LNG tank.
VCE-Driven LNG Vessel–Pipe–Flange Vulnerability
Nonlinear structural–environmental assessment linking VCE-induced local deformation in a connected LNG vessel–pipe–flange system to credible cryogenic-spill initiation regions.
Scope a nonlinear Abaqus FEA problem.
Send available files and the engineering question. Axis FEA will respond with a suitable analysis route and required inputs.