There's a not insignificant chance I'll get to open a DND club at my school so I made these quick charts to help. They're made to be printed in A5 format, and if anyone is interested I can try and put a link to the PDF version on drive.
First image covers the type and names of dice. Image 2 explains ability scores, img 3 explains what modifiers, HP, AC, Proficiency, DC saving throw & death save mean.
Image 4 & 5 are also lists of words but they have a big red logo with white axes in it. Img 4 explains flanking, advantage, disadvantage, melee range, critical hit/fail, area of effect and ranged spell attack. Img 5 explains the elements of combat: Initiative, what a Round is, movement, action, bonus action, reaction, attack of opportunity.
My next step is to make one of these per class to help players remember their main level 1 features and main rolls, but that's probably going to have to wait until later.
This effort was inspired by GinnyDi's video about how to help new players like the game on YouTube. Please reblog if this seems useful to you!
ETA: There are now two more booklets in this collection: The Little Book of Level 1 has all the essential mechanics of each class, and Conditions, conditions, conditions! Sums up all possible conditions in the game. You can find them through the pinned post on my blog :)
How to perform a foam tensile strength test – ASTM D3574
This write-up talks about checking the strength of foam. In ASTM D3574 Test E, which deals with various types of flexible cellular urethane foams like slabs, bonded, and molded ones, you'll find a test specifically for foam tensile strength. The test suite covers a range of assessments, such as density, ball rebound, and airflow tests. However, the primary focus here is on mechanical tests that a universal testing machine can conduct, like indentation force deflection, compression force deflection, and tear resistance.
Exploring Test E: Foam Tension Test
The goal of the tension test on polyurethane foam is to measure two things: tensile strength and elongation. To find the tensile strength, you simply divide the highest load during the test by the cross-sectional area of the sample.
Conducting the foam tensile strength test is somewhat similar to testing other polymers, but when it comes to gripping and measuring extension, a bit more care is needed. The thickness of the foam during testing should be at least 12.5mm, although thicker samples are often measured. Since foams usually don't have very high tensile strengths, grips with a low force capacity (1kN) work well. So, the recommended grips are wide-opening (at least 20mm) vise or pneumatic grips.
Navigating Extension Measurement Challenges
Measuring extension has its challenges. The "dogbone" shape of the sample makes using grip separation for measuring elongation less than ideal due to potential errors caused by uneven specimen width. Despite this, it's still common to measure elongation using grip separation. The rationale behind this is that contact extensometers, which could be an alternative, clip onto the foam, distorting the sample thickness and causing premature breakage. While non-contact optical extensometers work effectively, their high cost (sometimes more expensive than the entire testing machine) makes them impractical.
Universal Tensile Strength Testing Machine for Plastics | Tech Trivial
Tech Trivial now brings you a universal tensile strength testing machine. Machines are largely used as cable and plastic test equipment. The tester can complete one test with a simple five-step operation: select the existing test method, input the sample size, install the sample, start the test, and print the report. Machine is used for testing a wide range of materials for tension, compression, bending, shearing, and low cycle test. Suitable for metal, rubber, plastic, spring, textile, and components testing, it is widely used in the corresponding industries, research, and development, test institutes, training centers, etc.
There two models with different variants of force as per the requirements of customers.
1. Single column UTM invariants from 0.5KN to 10KN.
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