有限要素法による段付丸棒の弾塑性応力集中率及びひずみ集中率の解析

スポンサーリンク

概要

• 論文の詳細を見る

• The problem of elastic-plastic stress and strain concentration ratios of the bars with a shoulder fillet is numerically investigated by means of the finite element method. The stress distributions and the angular positions of peak stress at the shoulder root of the shaft respectively under tension, bending and torsion are obtained, and the stress concentration factors are calculated. These numercally analyzed results are compared with the results of strain gage measurment and the Peterson's values. The plastic stress and strain concentration ratios of the shouldered shafts under tension are obtained, and the validity of Neuber's equation is discussed by making use of the analyzed results. We come to the following conclusions. According as the fillet root radius of the shaft becomes larger and the fillet depth becomes smaller, the maximum stress of the shaft increases. The angular position of peak stress at the shoulder root is exactly obtained. The analyzed stress concentration factors of the shouldered shafts are larger than the values presented in Peterson's data book. This tendency is more clearly observed when the values of fillet root radius ratio α/ρ in shafts are smaller. The discrepancy between the analyzed results and Peterson's values is within 15% at maximum as far as our analyzation is concerned. The analyzed results are nearly equal to the values of strain gage measurment. The Neuber's equation evaluates more than the values of the plastic stress and strain concentration ratios by the finite element method.

• 高山自動車短期大学の論文
• 1981-01-31

著者

• 松井 高信

  機械工学

関連論文

• スリットを持つポリカーボネイト樹脂板の亀裂進展挙動
• 延性材料の弾塑性き裂進展挙動 : 第1報 光弾性実験による応力場の観察
• 異質材の境界を持つ帯板の応力拡大係数
• 有限要素法による半円または円穴切欠きを有する帯板の弾塑性応力集中率及びひずみ集中率の解析
• 有限要素法による段付丸棒の弾塑性応力集中率及びひずみ集中率の解析
• 有限要素法による半円切欠き丸棒の応力集中率及びひずみ集中率の解析

スポンサーリンク