بایگانی برچسب: fracture

The critical mechanical characteristics governing the usability of concrete containing wood shavings as aggregates are mechanical strength and durability.There is a renewed interest in the use of wood-based composite materials because of their ability to regulate indoor climate. Numerous studies have shown that the hygroscopic behavior of materials of vegetable ...

In this simulation the air-blast response of sandwich panels with composite face sheets (GFRP) and foam cores has been investigated.Sandwich panels based on two relatively stiff face sheets separated by a foam core are commonplace in the marine industry.for example in surfboard and yacht construction. Lightweight sandwich materials are attractive options for ...

In this video Simulation high-velocity impact of a ceramic target with Johnson–Holmquist material model has been studied.Ceramic materials are commonly used in armor protection applications. In recent years Johnson, Holmquist, and their coworkers have developed a series of constitutive relations to simulate the response of ceramic materials under large strain, high-strain ...

In this tutorial Simulation air blast load over reinforced concrete wall with Johnson-Holmquist behavior in Abaqus has been investigated. Dynamic explicit step with conwep air blast procedure are appropriate for this analysis.The JH-2 model is a constitutive model suitable to predict the behaviour of brittle materials subjected to extreme loading. The ...

In this example we consider an analysis of the Koyna dam, which was subjected to an earthquake of magnitude 6.5 on the Richter scale on December 11, 1967. The example illustrates a typical application of the concrete damage base on traction separation laws. Dam is modeled as two dimensional part ...

In this video Simulation high velocity bullet impact to three layers plate in Abaqus has been investigated. To model all part three dimensional space was used. Ductile and Shear damage with evolution for modeling steel behavior, Johnson-Cook damage and plasticity for modeling aluminium behavior and Ductile damage couple with Drucker-Prager plasticity for ...

This video presents a numerical study on the simulation of impacts of projectiles on fluid-filled container. All the parts are modeled as a three dimensional parts and for projectile steel material and for container aluminium has been used. To predict damage propagation Johnson-Cook plasticity and damage for two metal parts ...

 In this tutorial crack modeling and mechanical fracture parameter in the four point bending test in Abaqus has been investigate. Piece has a crack edge with three mm length which under the bending load. In this example two dimensional part has been used and the pieces is modeled with steel material ...

In this video you can see step by step tutorial of ellipsoid crack in the pressure vessel under internal and external pressure in ABAQUS sofware.The internal pressure is fixed but the external pressure is variable with time and location. For calculation the external pressure we used DLOAD subroutine as function ...

In this video you can see Simulation blast loading over concrete slab  in Abaqus step by step. Concrete is modeled as lagrangian part with Johnson-Cook material plasticity and damage to predict fracture area in slab. JH material is appropriate for blast analysis and high speed deformation.  For blast modeling CONWEP ...

This is a full English video to clarify high velocity impact of a steel projectile on to the ceramic plate in Abaqus soft ware. The steel projectile has been modeled as a deformable part and for material model  has been used ductile and shear damage with evolution for predicting fracture ...