Investigation of Functionally Graded Adherents on Failure of Socket Joint of FRP Composite Tubes oleh Chander Prakash, Vidyapati Kumar, Ankita Mistri, Amrinder Singh Uppal, Atul Babbar, Bhargav Prajwal Pathri, Jonty Mago, Ankit Sharma, Sunpreet Singh, Linda Yongling Wu, Hongyu Zheng