The Analytical Method to Compute the Strain on the Soft PSD in Double-Pulse SRM

Table 2

Calculation results of circumferential strain.

	Input		Structural response
	Gap/mm	Case modulus (GPa)	of case		of grain
			FEM (%)	Analytical (%)	FEM (%)	Analytical (%)
1	1.5	150	21.67	23.71	15.99	21.29
2	5.0	150	25.85	28.29	14.89	19.74
3	1.5	200	21.05	23.21	15.46	20.79
4	5.0	200	25.26	27.81	14.39	19.27
5	1.5	220	20.82	23.03	15.27	20.61
6	5.0	220	25.05	27.64	14.21	19.09

Note: the circumferential strain of the soft PSD takes the maximum value at the end of the loading, and the circumferential strain of the case takes at the same axial position as the maximum circumferential strain of the soft PSD.