/IMPL/RREF/OFF

Engine Keyword Deactivation reference residual option and using the previous one in stop criteria for implicit nonlinear analysis.

Format

/IMPL/RREF/OFF

Comments

  1. /IMPL/RREF becomes the default option from this version. In this case,

    Residual r = r = f e x t − f int − M a MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqGqFfpeea0xe9vq=Jb9 vqpeea0xd9q8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr 0=vr0db8meaabaqaciGacaGaaeqabaWaaeaaeaaakeaacaWHYbGaey ypa0JaaCOzamaaBaaaleaacaWGLbGaamiEaiaadshaaeqaaOGaeyOe I0IaaCOzamaaBaaaleaaciGGPbGaaiOBaiaacshaaeqaaOGaeyOeI0 Iaamytaiaahggaaaa@4501@

    ‖ r ‖   0 = max ( ‖ f e x t ‖ , ‖ f int ‖ , ‖ M a ‖ ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqGqFfpeea0xe9vq=Jb9 vqpeea0xd9q8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr 0=vr0db8meaabaqaciGacaGaaeqabaWaaeaaeaaakeaadaqbdiqaai aahkhaaiaawMa7caGLkWoadaWgaaWcbaGaaGjcVlaaicdaaeqaaOGa eyypa0JaciyBaiaacggacaGG4bWaaeWaaeaadaqbdiqaaiaahAgada WgaaWcbaGaamyzaiaadIhacaWG0baabeaaaOGaayzcSlaawQa7aiaa cYcadaqbdiqaaiaahAgadaWgaaWcbaGaciyAaiaac6gacaGG0baabe aaaOGaayzcSlaawQa7aiaacYcadaqbdiqaaiaad2eacaWHHbaacaGL jWUaayPcSdaacaGLOaGaayzkaaaaaa@5809@

    ( a MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqGqFfpeea0xe9vq=Jb9 vqpeea0xd9q8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr 0=vr0db8meaabaqaciGacaGaaeqabaWaaeaaeaaakeaacaWHHbaaaa@3851@ =0 for static).

    When /IMPL/RREF/OFF is used, the previous criteria is used, ‖ r ‖   0 = ‖ r ‖ MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbwvMCKf MBHbqefqvATv2CG4uz3bIuV1wyUbqedmvETj2BSbqefm0B1jxALjhi ov2DaebbnrfifHhDYfgasaacH8akY=xipgYlh9vqqj=hEeei0xXdbb a9frFf0=yqFf0dbba91qpepeI8k8fiI+fsY=rqaqpepae9pg0Firpe pesP0xe9Fve9Fve9qapdbaGaaiGadiWaamaaceGaaqaacaqbaaGcba WaauWaceaacaWHYbaacaGLjWUaayPcSdGaaGjcVpaaBaaaleaacaaI Waaabeaakiabg2da9maafmGabaGaaCOCaaGaayzcSlaawQa7aaaa@45A5@ at the beginning of each cycle.

  2. This keyword is used only for implicit nonlinear implicit, and is generally more difficult to converge.