ABAQUS, description

ABAQUS, description, 123 Accelerating-rate calorimetry advantages and disadvantages, 428-429 experimental procedure, 429-430 hazard evaluation on MDl, 43lr isothermal decomposition studies, 431-432,433/ use in assessment of hamrds of chemicals, 428... 

For static and (structural) dynamic analysis, for determination of eigenfre-quencies and eigenmodes, several different commercial tools exist such as NASTRAN, ABAQUS or ANSYS. Some of them are also able to handle actuators and piezoelectric materials, and also to carry out some types of model reduction techniques. Nevertheless, specific techniques might have to be established by the user via accessing the modal data base. These data are then also used to set up a modal or otherwise condensed state-space representation possibly including specific actuator and sensor models. A description of the transformation of finite-element models from ANSYS to dynamic models in state space form in MATLAB can be found in [20]. 

Concept of numerical concrete . A Finite Element numerical simulation based on a realistic explicit description of the material using ABAQUS package is developed. This work is a part of the MuMoCC project [1,2] in which several mechanical and physical properties were numerically determined for cement-based materials at various scales microscale (Hardened Cement Paste) and sub-mesoscale (mortar). In this new study, the mesoscale is considered and concrete is seen as a mixture of coarse aggregates embedded in a mortar matrix surrounded by an ITZ. 

Crash-simulation in general is performed with explicit solvers like LS-Dyna, Abaqus/Explicit or PamCrash to include mass inertia into simulation. For thermoplastics it has to be based on an exhaustive, plastics oriented material description that includes elastic and plastic deformation as well as failure. The most important influencing factors on the mechanical material behavior of non-reinforced thermoplastics under high deformation speeds are the strain-rate dependency and the non-linear behavior during plastic deformation. A failure criterion has to be applied in order to reflect the amount of energy the material can absorb through deformation until it fails. 

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See also in sourсe #XX -- [ ]

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