What are numerical methods to evaluate the strain energy release rate (SERR) to predict delamination onset and propagation?
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Numerical methods play a crucial role in evaluating the strain energy release rate (SERR) for predicting delamination onset and propagation in composite materials. One such method is the Virtual Crack Closure Technique (VCCT), which helps avoid time-step and mesh dependency issues in delamination growth analysis . Another approach involves using the contour integral method based on the dynamics of a Timoshenko beam, which considers vibrational modes and eigenfrequencies to calculate SERR under dynamic loading conditions . Additionally, the Compliance Calibration Method is utilized for experimental investigations to determine fracture toughness for mode II crack expansion in fiber-reinforced composites, aiding in understanding the resistance to crack growth at different fiber volume fractions . These numerical techniques provide valuable insights into delamination behavior and aid in predicting failure in composite structures.
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| Papers (5) | Insight |
|---|---|
| Numerical methods like Virtual Crack Closure Technique (VCCT) are used to evaluate the critical strain energy release rate (SERR) for predicting delamination onset and propagation in composite materials. | |
| Numerical methods like Virtual Crack Closure Technique (VCCT) in ANSYS 15 are used to evaluate Strain Energy Release Rate (SERR) for predicting delamination onset and propagation in GFRP structures. | |
11 Jul 2018 1 Citations | The Virtual Crack Closure Technique (VCCT) and SMXB-FB method are numerical approaches used to evaluate the Strain Energy Release Rate (SERR) for predicting delamination onset and propagation in composite panels. |
2 Citations | The paper proposes a closed-form solution using the contour integral method and finite element analysis to evaluate SERR, considering shear, crack tip root rotation effects, and beam dynamics under dynamic loading. |
2 Citations | The paper proposes a closed-form solution using the contour integral method and finite element analysis to evaluate SERR, considering shear, crack tip root rotation, and localized vibrations under dynamic loading. |
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