Testing – Then & Now

“One test result is worth one thousand expert opinions.”

Wernher von Braun

While reviewing some of our first catalogs, I was curious about the testing we did on those iconic products that launched our company. I found a test report from December 20, 1957 on crinkled yellow paper with a short description: U-29 Download Test. The signature from the independent testing agency was a little faded, and the data was typed by hand in a table. But I was thrilled to discover that our 1957 customers received exactly the same thing as our modern-day customers – the confidence in knowing that our allowable loads are supported by physical testing.

There simply is no substitute for a physical test.

Sample of a clip before testing

For example, when we recently developed our line of products for use with curtain-wall steel-stud framing, we started product development just as we did in 1957 – not with expert opinions, just a test.

The first few tests were basic bent pieces of metal to isolate critical design features and characteristic performance of the part.

Sample of a clip after testing

We then did dozens of iterations of physical testing plus scores of simulations using finite element analysis to refine the parts. We varied the rolled edges and embossments, tried different fasteners and adjusted fastener locations until we achieved the best load at the lowest installed cost. After all of that, we tested the final products one more time for the code report.

How important is product testing to you? Let us know by posting a comment.

– Paul

Paul McEntee

Author: Paul McEntee

A couple of years back we hosted a “Take your daughter or son to work day,” which was a great opportunity for our children to find out what their parents did. We had different activities for the kids to learn about careers and the importance of education in opening up career opportunities. People often ask me what I do for Simpson Strong-Tie and I sometimes laugh about how my son Ryan responded to a questionnaire he filled out that day:

Q.   What is your mom/dad's job?
A.   Goes and gets coffee and sits at his desk

Q.   What does your mom/dad actually do at work?
A.   Walks in the test lab and checks things

When I am not checking things in the lab or sitting at my desk drinking coffee, I manage Engineering Research and Development for Simpson Strong-Tie, focusing on new product development for connectors and lateral systems.

I graduated from the University of California at Berkeley and I am a licensed Civil and Structural Engineer in California. Prior to joining Simpson Strong-Tie, I worked for 10 years as a consulting structural engineer designing commercial, industrial, multi-family, mixed-use and retail projects. I was fortunate in those years to work at a great engineering firm that did a lot of everything. This allowed me to gain experience designing with wood, structural steel, concrete, concrete block and cold-formed steel as well as working on many seismic retrofits of historic unreinforced masonry buildings.