F3-5 有限要素法を用いた材料内の弾塑性水素拡散連成解析(F3. 低炭素社会向けシミュレーション技術)

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概要

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• Presence of dissolved atomic hydrogen in metals and alloys can severely degrade mechanical properties and fracture toughness, reduce the fracture strength and accelerate the crack growth. During hydrogen embrittlement, materials soften at microscale due to the enhancing of dislocation mobility. In this work, we conduct a coupled hydrogen diffusion-elastoplastic analysis which includes the effect of hydrogen on materials softening in microscale by taking into account a well developed constitutive equation accompanied by considering the reduction in the local flow stress upon hydrogen dissolution into the lattice. Progress has been made in that a new module has been developed, which makes the open source code ADVENTURE-Solid software be capable of specific simulation for hydrogen-plasticity interactions.

• 2010-09-23

著者

• Masao Ogino

  Department Of Intelligent Machinery And Systems Faculty Of Engineering Kyushu University

• Kanayama Hiroshi

  九大

• Liu Lijun

  九大

• Miresmaeili Reza

  九大

• Ogino Masao

  九大

関連論文

• A Scalable Balancing Domain Decomposition Based Preconditioner for Large Scale Heat Transfer Problems
• F3-5 有限要素法を用いた材料内の弾塑性水素拡散連成解析(F3. 低炭素社会向けシミュレーション技術)
• F3-3 不完全バランシング前処理を用いた非定常非圧縮性粘性流解析(F3. 低炭素社会向けシミュレーション技術)
• F2-5 A One-Way Coupled Crystalline Plasticity-Transient Hydrogen Diffusion Analysis to Simulate the Effect of the Heterogeneity of Stress-Strain States on Hydrogen Distributions in Microstructure
• F2-3 Balancing Domain Decomposition for Non-stationary Incompressible Flow Problems Using a Characteristic-curve Method
• F2-6 A Finite Element Analysis of Hydrogen Diffusion in a Stainless Steel Containing Strain-Induced Martensite

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