000225003 001__ 225003
000225003 005__ 20190317000627.0
000225003 0247_ $$2doi$$a10.1007/s12283-016-0210-1
000225003 022__ $$a1369-7072
000225003 02470 $$2ISI$$a000387943400005
000225003 037__ $$aARTICLE
000225003 245__ $$aMeasuring the accuracy of softball impact simulations
000225003 269__ $$a2016
000225003 260__ $$bSpringer London Ltd$$c2016$$aLondon
000225003 300__ $$a8
000225003 336__ $$aJournal Articles
000225003 520__ $$aA study has been conducted to review viscoelastic and foam-constitutive models to describe sport ball response to impact with a rigid cylindrical surface. The impact model was developed to simulate a ball-bat collision. Comparisons were made to actual impacts, utilizing displacements recorded and analyzed using high-speed video capture. The resulting images and the ball geometry before impact were used as input to a computer-vision algorithm, which then produced a quantitative description of the deformation during impact. Foam-based material models were observed to match this observed deformation better (within 1 %) than viscoelastic material models (within 5 %). Both viscoelastic and foam material models deviated more from experimental data when describing dissipated energy and stiffness than when describing deformation. When describing impact energy dissipation and ball stiffness, the viscoelastic models deviated from experiment by more than a factor of two, while the foam material models exhibited up to 35 % error. The measured ball deformation, afforded through video analysis, has shown that foam material models are better able to describe ball impacts involving large energy dissipation, but require further refinement before equipment performance and design can be reliably performed.
000225003 700__ $$uWashington State Univ, Pullman, WA 99164 USA$$aSmith, Lloyd
000225003 700__ $$uWashington State Univ, Pullman, WA 99164 USA$$aNevins, Derek
000225003 700__ $$aDat, Ngo Tien
000225003 700__ $$g112366$$aFua, Pascal$$0240252
000225003 773__ $$j19$$tSports Engineering$$k4$$q265-272
000225003 8564_ $$uhttps://infoscience.epfl.ch/record/225003/files/Smith16a.pdf$$zn/a$$s620632$$yn/a
000225003 909C0 $$xU10659$$0252087$$pCVLAB
000225003 909CO $$ooai:infoscience.tind.io:225003$$qGLOBAL_SET$$pIC$$particle
000225003 917Z8 $$x112366
000225003 937__ $$aEPFL-ARTICLE-225003
000225003 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000225003 980__ $$aARTICLE