ASTM D1781

Engineered in strict accordance with ASTM D1781, our climbing drum peel fixture is specifically designed to evaluate the peel resistance and adhesive strength between the facing and the core in sandwich constructions. Featuring a precision-machined aluminum alloy drum with copper counterweights to strictly meet standard mass requirements, and equipped with high-toughness steel straps for exceptional durability, it ensures consistent peel geometry and reliable data collection. Capable of handling loads up to 5 kN, it is an essential tool for quality control and structural analysis of honeycomb sandwich panels in the aerospace and construction industries.

Overview

Engineered in strict accordance with the ASTM D1781 standard, this fixture is designed for climbing drum peel testing of sandwich specimens. It provides a highly reliable method for evaluating the peel resistance and adhesive strength between the facing and the core in sandwich constructions. By utilizing a precisely calibrated climbing drum mechanism, the fixture ensures consistent peel angles and uniform load distribution throughout the test, delivering accurate data essential for the quality control and structural analysis of advanced composite materials.

Design Features and Benefits

Standard-Compliant Drum Assembly:
The drum is manufactured from high-quality aluminum alloy and equipped with precision copper counterweights, ensuring the drum's mass falls strictly within the range specified by the standard.
High-Durability Steel Straps:
Features high-strength, high-toughness steel straps that withstand continuous cyclic loading without breaking, ensuring long-term reliability during testing.
Precise Alignment Design:
Designed to maintain proper specimen alignment and continuous peel geometry, minimizing non-linear effects and maximizing data accuracy.

Applications

Primary Purpose:
Used for determining the peel resistance of adhesive bonds between the relatively flexible facing and the rigid core of sandwich structures.
Material Evaluation:
Essential for evaluating the structural integrity and adhesive performance of honeycomb sandwich panels and composite structures used in aerospace, construction, and transportation industries.

Technical Specifications:

Parameter Specification
1 Model Number ACAD1781B0a
2 Part No. 1JAASD178102
3 Test Style Peeling
4 Max Load Capacity 5 kN
5 Specimen Length 250 mm
6 Specimen Width 76 mm
7 Specimen Thickness 12.7 mm
8 Drum Diameter 101.6 mm
9 Flange Diameter 126.7 mm
10 Fixture Dimensions (H × W × D) 475 × 143 × 130.7 mm
11 Weight 4.5 kg
12 Operating Temperature Ambient (RT)
13 Built Material Steel and Aluminum Alloy
14 Connecting Interface Φ20, Φ31.75, Φ40 mm

Why Choose Us?

  • •  We provide 7×24 technical consultation, operator training, and timely software updates.

  • •  We offer remote monitoring of equipment status, enabling rapid diagnosis and resolution when abnormalities occur.

  • •  Keeping up with the latest development of widely adopted international standards from ASTM, ISO, etc. to ensureyour test results relevant and credible

  • •  Maximizing your lab investment returns with tailored solutions to your unique needs from cost effective hardware tosoftware customization

  • •  We treat everyone, be it clients, colleagues or partners, with honesty and sincerity.

  • •  Staying at the forefront of testing technologies that continuously improve test accuracy, repeatability, and eficiency