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Temperature Chambers for Universal Testing Machines: A Buyer's Guide to Hot and Cold Testing (-80 °C to +350 °C)
How to choose a temperature chamber for tensile, compression and flexure testing: temperature range, LN2 vs. mechanical cooling, grips and extensometers at temperature, and fitting a chamber to an Instron, MTS, Zwick or Shimadzu frame.
Mark Edwards
10 hours ago5 min read


Video Extensometer Retrofit: Add Non-Contact Strain Measurement to Your Instron, MTS or Shimadzu Machine
A video extensometer retrofits to the testing machine you already own. How it connects to Instron, MTS, Shimadzu, Zwick and Tinius Olsen frames, which model fits your standards, setup steps, cost and FAQs.
christopherthomasb
1 day ago6 min read


Composite Test Fixture Buyer's Guide: ASTM D3039, D5379, D7078, D2344, D6641 and More
Which fixtures does a composites lab actually need? A practical guide to ASTM D3039 tensile grips, D5379 and D7078 shear fixtures, D2344 short-beam, D6641 CLC compression and open-hole fixtures.
christopherthomasb
2 days ago4 min read


Mark-10 Test Frame vs. Universal Testing Machine: Which Does Your Lab Need?
Mark-10 force frame or full universal testing machine? Compare capacity, tests, strain measurement and à la carte software so you buy what your lab needs and nothing more.
Mark Edwards
2 days ago4 min read


ASTM D3787 Ball Burst Testing: A Complete Guide to the UniversalGripCo Ball Burst Puncture Fixture
Introduction In the field of textile and flexible material testing, understanding how a material behaves under multidirectional stress is critical for predicting real-world performance. Fabrics used in apparel, medical textiles, industrial materials, and geotextiles are frequently subjected to forces that do not occur purely along a single axis. Instead, these materials often experience localized pressure and multi-directional stress , which can lead to puncture or bursting f
Mark Edwards
Mar 267 min read


UniversalGripCo Arbor Press: Precision Force Application for Laboratory and Materials Testing
Arbor Press Cutting Sample Introduction In materials testing laboratories and engineering environments, many tasks require controlled compressive force to assemble components, prepare test fixtures, or install precision mechanical parts. While large automated systems such as universal testing machines handle tensile and compression testing, technicians frequently rely on smaller manual tools to prepare equipment and samples before testing begins. One of the most reliable too
Mark Edwards
Mar 266 min read


Environmental Chambers for Universal Testing Machines
Modern environmental chambers are designed to operate with any universal testing machine, regardless of manufacturer.
christopherthomasb
Feb 274 min read


ASTM C1161: Standard Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature
Introduction to ASTM C1161 Advanced ceramics are widely used in applications where high stiffness, thermal stability, wear resistance, and chemical inertness are required. Unlike metals or polymers, however, ceramics exhibit little to no plastic deformation and fail in a brittle manner. Because of this behavior, traditional tensile testing is often impractical or unreliable for ceramic materials. Instead, flexural strength testing has become the primary method for characteri
Mark Edwards
Jan 307 min read


ASTM D1781 Climbing Drum Peel Test Fixture
This article provides a comprehensive technical overview of ASTM D1781, including the principles of the climbing drum peel test, required equipment, specimen preparation, grips and fixtures, data analysis, and best practices for achieving reliable and repeatable peel adhesion results.
Mark Edwards
Jan 237 min read


ASTM D5458: Standard Procedures for Tensile Testing Using Universal Testing Machines
ASTM D5458 provides guidance on test setup, equipment selection, and procedural considerations that help laboratories generate repeatable, comparable, and defensible tensile test data.
Mark Edwards
Jan 236 min read


Gauge Length Selection for Video Extensometers Across ASTM Standards
This article provides a detailed, standards-driven guide to gauge length selection for video extensometers, with practical examples from ASTM D638, ASTM D412, ASTM E8, and ASTM D3039.
christopherthomasb
Jan 165 min read


The Complete Guide to Sample Marking for Video Extensometers
Whether performing routine tensile testing, measuring Poisson’s ratio, or conducting full-field strain analysis, correct sample marking is essential for reliable, repeatable strain data. This article provides a comprehensive guide to sample marking for video extensometers, explains how digital image correlation (DIC) works, and outlines best practices for achieving high-quality strain measurements across a wide range of materials.
christopherthomasb
Jan 75 min read


ASTM F1306: Puncture Resistance Testing for Medical Device Packaging and Med. Device Integrity
ASTM F1306 slow-rate penetration fixtures for medical device packaging, showing a compliant puncture resistance fixture, defined probe geometry, and rigid specimen clamping for mounting on a universal testing machine to ensure accurate, repeatable puncture force measurements. Slow Rate Penetration (Puncture Resistance) Testing of Medical Packaging Medical device packaging plays a critical role in maintaining sterility, protecting devices during distribution, and ensuring pati
christopherthomasb
Jan 24 min read


Video Extensometers VS. Clip-On Extensometers
If you’re trying to choose between a video (non-contact) extensometer and a clip-on (contact) extensometer, the best answer depends on what you test, how often you change specimen types, your accuracy needs, your risk tolerance for damaging samples, and—very often—budget.
christopherthomasb
Dec 31, 20256 min read


How to Choose the Right Grips for Tensile Testing
Selecting the correct grips for tensile testing is one of the most important — and most overlooked — decisions in any materials testing setup.
christopherthomasb
Dec 29, 20256 min read


When Should You Use an Extensometer?
Learn when to use an extensometer and why it is important for tensile testing on a universal testing machine.
christopherthomasb
Nov 10, 20253 min read


What is a Universal Testing Machine?
A Universal Testing Machine (UTM) is a mechanical-testing instrument designed to apply controlled axial forces (and sometimes other modes of loading) to material specimens and then measure the specimen’s response (force, displacement, strain, deformation, failure) under well-defined conditions.
christopherthomasb
Nov 3, 20258 min read


Stringing Together our Rope Testing Grips, String Grips, and Wire Grips ASTMs
One of our bollard grips for our Stringing Together our Ropes, Strings, and Wire Grips ASTMs Blog Post
christopherthomasb
Sep 17, 20254 min read


Our 3 Most Common Grip Adapters
A Beginner friendly Guide to Universal Grip's Adapters
christopherthomasb
Aug 12, 20252 min read


Revisiting Universal Grip's Manual Testers (Analog Testing Machines)
Manual Force Tensile Testing Machine
christopherthomasb
Aug 12, 20253 min read
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