Study on Accuracy of Gough P.S and Guo Stress Formula in Calculating Propellant Bed Stress under Quasi-static CompactionYu-ling Zhang, Guo-qing Liu, Jin-ming Li and Guo-dong WangMATEC Web Conf., 95 (2017) 12008DOI: https://doi.org/10.1051/matecconf/20179512008