ビームの破壊

Beamコンフィグには、Beam_memberとBeam_shellの2つのサブタイプがあります。前者は1D要素で構成され、後者はフリーボディ断面を指します。どちらのコンフィギュレーションにも、同じ実際のメソッドの変種が含まれています：
  1. Stringer Axial Stress
  2. Stringer compressive buckling

Stinger Axial Stressは、圧縮 / 引張の安全マージンを計算する、以下のような簡単なメソッドです：

MS= [(圧縮応力限度)*(断面の面積)/(軸力)] -1、(引張応力限度も同様)

フリーボディ断面の場合、軸力はフリーボディのFx合力にマップされます。

圧縮座屈メソッドは、 M S = F c c / σ x − 1 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamytaiaado facqGH9aqpcaWGgbWaaSbaaSqaaiaadogacaWGJbaabeaakiaac+ca cqaHdpWCdaWgaaWcbaGaamiEaaqabaGccqGHsislcaaIXaaaaa@40C8@ を評価します。ここで：
  • σ x MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeq4Wdm3aaS baaSqaaiaadIhaaeqaaaaa@38E2@ ： (軸力)/(断面の面積)で表される平均軸力
  • F cc = F cy *(1−.272(L'/ρ)/π* E/ F cy ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOramaaBa aaleaacaWGJbGaam4yaaqabaGccqGH9aqpcaWGgbWaaSbaaSqaaiaa dogacaWG5baabeaakiaacQcacaGGOaGaaGymaiabgkHiTiaac6caca aIYaGaaG4naiaaikdacaGGOaGaamitaiaacEcacaGGVaGaeqyWdiNa aiykaiaac+cacqaHapaCcaGGQaWaaOaaaeaacaWGfbGaai4laiaadA eadaWgaaWcbaGaam4yaiaadMhaaeqaaaqabaGccaGGPaaaaa@5028@
  • F c y MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOramaaBa aaleaacaWGJbGaamyEaaqabaaaaa@38D3@ ： 材料の圧縮応力限度
  • L ' = ( structural   property ​ ​   L e n g t h ) / K_constraint MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamitaiaacE cacqGH9aqpcaGGOaGaae4CaiaabshacaqGYbGaaeyDaiaabogacaqG 0bGaaeyDaiaabkhacaqGHbGaaeiBaiaaysW7caqGWbGaaeOCaiaab+ gacaqGWbGaaeyzaiaabkhacaqG0bGaaeyEaiaaygW7caaMb8UaaGjb VlaadYeacaWGLbGaamOBaiaadEgacaWG0bGaamiAaiaacMcacaGGVa WaaOaaaeaacaqGlbGaae4xaiaabogacaqGVbGaaeOBaiaabohacaqG 0bGaaeOCaiaabggacaqGPbGaaeOBaiaabshaaSqabaaaaa@6274@
    • K_constraint = 構造プロパティの“制約係数”。デフォルト = 0.0699
  • ρ MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9 vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=x fr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqyWdihaaa@37B6@ ： ビーム断面の旋回半径
  • E： 材料のヤング率