Mechanics of Materials in 3D Print: The Yield Strength at the Center

The field of 3D printing is gaining ground as one of the most revolutionary technologies in the industrial landscape. One of the critical aspects that determines the strength of 3D printed materials is their mechanical strength, with particular reference to yield stress, or “yield strength.”

Quoting Pearl Jam and their iconic song “YIELD” [Cit. YIELD, Pearl Jam, 1998, Epic Records…epic, indeed!], we dive into a deep reflection on the mechanics of materials. Yield stress indicates the maximum stress a material can undergo before it begins to permanently deform. It is, in essence, the limit beyond which the material begins to fail and lose its integrity.

For those who want to ensure that 3D printed components are durable and functional, understanding material yielding is essential. Here is a list highlighting the yield stress of the most common materials used in 3D printing:

1- PA12CF (PA12+35%CF): 115 MPa (at break)
2- Antero 800NA (PEKK): 87 MPa
3- ULTEM 1010 (PEI): 80 MPa (at break)
4- ULTEM 9085 (PEI+PC): 70 MPa
5- Victrex AM 200 (PAEK): 63 MPa
6- Polycarbonate (PC): 58 MPa
7- Addigy® (PA6/66-GF20): 51 MPa
8- Nylon12 (PA12): 49 MPa
9- ABS: 35 MPa
10- ASA: 33 MPa

Choosing the appropriate material, considering its mechanical properties, is critical to ensuring the longevity and functionality of the parts. For more insights and to stay updated on these issues, please follow us on our social channels.