TY - JOUR TI - Determining the effective stress – effective strain curve of a high-strength low-alloy steel sheet from the viscous pressure bulge test AU - ERHUY, C.G. AU - YURCİ, M.E. AU - ALTAN, T. JO - Sigma Journal of Engineering and Natural Sciences PY - 2008 VL - 26 SP - 281 EP - 300 DO - ER -