TY - JOUR T1 - Validation and internal length scale determination for a gradient damage model: application to short glass-fibre-reinforced polypropylene JO - International Journal of Solids and Structures PY - 1999/06/01 AU - Geers MGD AU - Borst RD AU - Brekelmans WAM AU - Peerlings RHJ ED - DO - DOI: 10.1016/s0020-7683(98)00123-1 PB - Elsevier BV VL - 36 IS - 17 SP - 2557 EP - 2583 Y2 - 2024/12/25 ER -