Short Beam Shear Fixture GZ IL-10

The Short Beam Shear test (SBS) for the determination of apparent interlaminar shear strength (ILSS) is a modified 3-Point Flexural test. The span length of the fixture is small as compared to the specimen’s thickness which induces shear stress to the specimen. The geometry of the specimen is a short beam of thermoplastics or thermosettings continuously reinforced by fibres in 0° or 0°/90°-direction. The standard defines apparent interlaminar shear strength as “maximum shear stress calculated at half thickness of specimen at the moment of first failure.”[3]


  • Compact design allows testing forces up to 10 kN
  • Exchangeable test fixture modules for quick and easy adaption of the testing device to various testing standards
  • Precise alignment of the specimen due to lateral guiding and adjustment gauge
  • Stainless steel design of all components for use in climate chambers (-60 to +150°C)
  • Adapter to all standard electro-mechanical and servo-hydraulical testing machines



  • DIN EN ISO 14130, “Faserverstärkte Kunststoffe – Bestimmung der scheinbaren interlaminaren Scherfestigkeit nach dem Dreipunktverfahren mit kurzem Balken“ DIN, 1997
  • DIN EN 2377, “Luft- und Raumfahrt; Glasfaserverstärkte Kunststoffe; Prüfverfahren zur Bestimmung der scheinbaren interlaminaren Scherfestigkeit“, DIN, 1989
  • DIN EN 2563, “Luft- und Raumfahrt – Kohlenstoffaserverstärkte Kunststoffe – Unidirektionale Laminate; Bestimmung der scheinbaren interlaminaren Scherfestigkeit“, DIN, 1997
  • ASTM D 2344, “Standard Test Method for Short-Beam Strength of Polymer Matrix Composite Materials and Their Laminates”, ASTM, 2016
  • CRAG method 100