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3. ASTM C273/C273M –16. Standard test method for shear properties of sandwich core materials. ASTM, West Conshohocken (2016)
4. ASTM D30309/D3039M-14: Standard test method for tensile properties of polymer matrix composite
5. ASTM D7249/D7249M –06. Standard test method for facing properties of sandwich constructions by long beam flexure. ASTM, West Conshohocken (2006)