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LLY-300 Instrumental drop hammer impact tester for composite plates

Introduction

The instrumented drop hammer impact testing machine is mainly suitable for testing nonmetallic material samples, and is mainly used to measure the damage resistance of various standard or non-standard composite plate samples under impact load. At the same time, the instantaneous force-displacement-time curve of the sample during the impact process can be reproduced on the computer. The testing machine integrates electrical control and software control technology, and can flexibly realize the dual control of automatic processes such as lifting hammer, impact and grasping hammer from the electric control cabinet or computer. In addition, the testing machine is designed with multiple protection measures to effectively ensure the use safety of operators and equipment.
Equipped with a special fixture for composite materials, the puncture strength test, CA test (compression after impact) and three-point bending test were completed.
According to the requirements of different users' test materials and test standards, the fixture required by the specification can be made, and one machine can be used for multiple purposes.

Parameters

No.	Parameter	Specification
1	Maximum impact energy	300 J
2	Minimum impact energy	10 J
3	Energy resolution	0.1 J
4	Impact height	0 – 1500 mm
5	Machine height	3500 mm
6	Impact force sensor accuracy	Within ±0.3%
7	Hammer lifting speed	0 – 1000 mm/min
8	Impact speed	Free-fall impact speed 0.1 – 5.4 m/s; optional spring-accumulator acceleration up to 10 m/s; impact speed error within ±1%
9	Impact acceleration sensor range	≥ 1000 G
10	Acceleration sensor output	0 – 5 V
11	Deviation of impact point from lateral center of specimen	< ±0.05 mm
12	Hammer: hardness	HRC 58 – 60
13	Hammer: shape & dimensions	Diameter φ16 ± 0.1 mm, spherical radius SR8 ± 0.1 mm
14	Specimen fixture	Impact support plate opening (75 ± 1) mm × (125 ± 1) mm (meets ASTM D7136/D7136M-15)
15	Height display	Digital display
16	Absolute resolution of impact height	0.00017 mm (software display resolution 0.001 mm)
17	Channel acquisition accuracy	24-bit
18	Channel acquisition speed	2 MHz
19	Impact displacement error	Within ±0.3%
20	Hammer mass	Multiple groups: 1 kg / 2 kg / 5 kg
21	Machine net weight	1200 kg
22	Machine dimensions	1100 mm × 800 mm × 3500 mm
23	Power supply & power	220V ± 10%, 50 Hz, 2.0 kW