Page 268 - Mechanical Engineer's Data Handbook
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              256                                                 MECHANICAL ENGINEER'S DATA  HANDBOOK


               6.16.8   Typical shear strength of         Joints with  increased bond area
               adhesives
                                                          -I
                                    Shear strength                       Double  lap
               Adhesive             (Nmm-')

               EPOXY                35                                Double  bun  strap
               Filled epoxy         14-21
               Epoxy polyamide      25
               Epoxy nylon          42
               Epoxy polysulphide   20-28
               Epoxy silicone       10-14
               Neoprene              2
               Nitrile               I
               Phenolic neoprene    14-20
               Phenolic nitrile     28
               Phenolic polyamide   35
               Phenolic vinyl       35
               Polyvinyl acetate    20
               Polyimide            14-18
               Polyurethane          4-10
               Silicone (unmodified)   14                   Right-angle  bun
                                                                                    Slotled-angle bun
               6.16.9  Joints for adhesives

               Lap joints


                      I     '       1
               \               Single lap
               \    \I             1
                            '  Joggle lap
                                   I
               1
                            'Tapered   lap                   ~~
                                                              Right-angle-bun support


                                                                  n







                                                                         Angle pieces

                                                           Angle pieces increase the bonded area and thus reduce
                                                           the cleavage stress.
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