Progressive Failure Analysis Static (PFA_STATIC)
Product Highlights:
·
Predicts the maximum loads that composite and metallic elements
and structures can sustain using a step-by-step virtual loading procedure that
takes into consideration material degradation, nonlinearity and changes in
structural geometry. Degradation of material properties is based on 1) matrix
plasticity and micro-cracking; 2) fiber orientation changes and breakage; and
3) environmental effects and manufacturing defects.
·
Predicts crack initiation and growth. The program computes
various damage locations and failure modes in composites caused by the
application of external static loads, temperatures and environmental effects.
·
Predicts damage events at different material scales beginning
with the micro-cracking in fiber, matrix and fiber/matrix interface. Damage
propagation is tracked from the micro-level to ply, laminate and structural
levels.
·
Optional use of conventional fracture mechanics approaches such
as Virtual Crack Closure Technique (VCCT) and Discrete Cohesive Zone Model
(DCZM).
·
Predicts the post-buckling response of a composite structure
based on the superposition of a required scaled buckle shape on the initial
geometry of the structure.
·
Predicts the time to failure as well as time-dependent crack
initiation and growth in composite elements and structures caused by external
static loads, temperature and environmental effects (creep response).
·
Effective for permeability and damage tolerant design of
composite structures. The program computes crack density and corresponding
material degradation in composite materials during the loading process.
·
Can be used as a virtual testing tool to reduce physical
experimental testing by closely simulating the actual testing process.
·
Comes with its own default finite element solver MHOST.
·
Integrates numerous commercial FEM software's including:
MSC.NASTRAN, MSC.MARC, ABAQUS, ANSYS and LS-DYNA. Allows the user to import,
handle and run finite element models prepared for MSC.NASTRAN, MSC.MARC,
ABAQUS, ANSYS and LS-DYNA.
Applications/Benefits:
|
·
Aerospace, automotive and construction industries.
·
Prediction/characterization of complicated failure mechanisms
that can occur in aerospace and automotive composite structures.
·
Prediction of damage and fracture initiation, progression and
structural collapse.
·
Determination of the ultimate strength of composite and metal
structures.
·
Determination of the residual strength of a composite structure
after impact/fatigue.
·
Prediction of inspection intervals and certification
requirements.
|
|
|
